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The word "advertize" should be replaced by "advertise".
Signed-off-by: Deming Wang <wangdeming@inspur.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The word "advertize" should be replaced by "advertise".
Signed-off-by: Deming Wang <wangdeming@inspur.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Current nf_flow_is_outdated() implementation considers any flow table flow
which state diverged from its underlying CT connection status for teardown
which can be problematic in the following cases:
- Flow has never been offloaded to hardware in the first place either
because flow table has hardware offload disabled (flag
NF_FLOWTABLE_HW_OFFLOAD is not set) or because it is still pending on 'add'
workqueue to be offloaded for the first time. The former is incorrect, the
later generates excessive deletions and additions of flows.
- Flow is already pending to be updated on the workqueue. Tearing down such
flows will also generate excessive removals from the flow table, especially
on highly loaded system where the latency to re-offload a flow via 'add'
workqueue can be quite high.
When considering a flow for teardown as outdated verify that it is both
offloaded to hardware and doesn't have any pending updates.
Fixes: 41f2c7c342d3 ("net/sched: act_ct: Fix promotion of offloaded unreplied tuple")
Reviewed-by: Paul Blakey <paulb@nvidia.com>
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Since 41f2c7c342d3 ("net/sched: act_ct: Fix promotion of offloaded
unreplied tuple"), flowtable GC pushes back flows with IPS_SEEN_REPLY
back to classic path in every run, ie. every second. This is because of
a new check for NF_FLOW_HW_ESTABLISHED which is specific of sched/act_ct.
In Netfilter's flowtable case, NF_FLOW_HW_ESTABLISHED never gets set on
and IPS_SEEN_REPLY is unreliable since users decide when to offload the
flow before, such bit might be set on at a later stage.
Fix it by adding a custom .gc handler that sched/act_ct can use to
deal with its NF_FLOW_HW_ESTABLISHED bit.
Fixes: 41f2c7c342d3 ("net/sched: act_ct: Fix promotion of offloaded unreplied tuple")
Reported-by: Vladimir Smelhaus <vl.sm@email.cz>
Reviewed-by: Paul Blakey <paulb@nvidia.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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With commit 9fee28baa601 ("powerpc: implement the new page table range
API") we added set_ptes to powerpc architecture. The implementation
included calling arch_enter/leave_lazy_mmu() calls.
The patch removes the usage of arch_enter/leave_lazy_mmu() because
set_pte is not supposed to be used when updating a pte entry. Powerpc
architecture uses this rule to skip the expensive tlb invalidate which
is not needed when you are setting up the pte for the first time. See
commit 56eecdb912b5 ("mm: Use ptep/pmdp_set_numa() for updating
_PAGE_NUMA bit") for more details
The patch also makes sure we are not using the interface to update a
valid/present pte entry by adding VM_WARN_ON check all the ptes we
are setting up. Furthermore, we add a comment to set_pte_filter to
clarify it can only update folio-related flags and cannot filter
pfn specific details in pte filtering.
Removal of arch_enter/leave_lazy_mmu() also will avoid nesting of
these functions that are not supported. For ex:
remap_pte_range()
-> arch_enter_lazy_mmu()
-> set_ptes()
-> arch_enter_lazy_mmu()
-> arch_leave_lazy_mmu()
-> arch_leave_lazy_mmu()
Fixes: 9fee28baa601 ("powerpc: implement the new page table range API")
Signed-off-by: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231024143604.16749-1-aneesh.kumar@linux.ibm.com
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The I40E_TXR_FLAGS_WB_ON_ITR is i40e_ring flag and not i40e_pf one.
Fixes: 8e0764b4d6be42 ("i40e/i40evf: Add support for writeback on ITR feature for X722")
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20231023212714.178032-1-jacob.e.keller@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Three more fixes:
- don't drop all unprotected public action frames since
some don't have a protected dual
- fix pointer confusion in scanning code
- fix warning in some connections with multiple links
* tag 'wireless-2023-10-24' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: mac80211: don't drop all unprotected public action frames
wifi: cfg80211: fix assoc response warning on failed links
wifi: cfg80211: pass correct pointer to rdev_inform_bss()
====================
Link: https://lore.kernel.org/r/20231024103540.19198-2-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"20 hotfixes. 12 are cc:stable and the remainder address post-6.5
issues or aren't considered necessary for earlier kernel versions"
* tag 'mm-hotfixes-stable-2023-10-24-09-40' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
maple_tree: add GFP_KERNEL to allocations in mas_expected_entries()
selftests/mm: include mman header to access MREMAP_DONTUNMAP identifier
mailmap: correct email aliasing for Oleksij Rempel
mailmap: map Bartosz's old address to the current one
mm/damon/sysfs: check DAMOS regions update progress from before_terminate()
MAINTAINERS: Ondrej has moved
kasan: disable kasan_non_canonical_hook() for HW tags
kasan: print the original fault addr when access invalid shadow
hugetlbfs: close race between MADV_DONTNEED and page fault
hugetlbfs: extend hugetlb_vma_lock to private VMAs
hugetlbfs: clear resv_map pointer if mmap fails
mm: zswap: fix pool refcount bug around shrink_worker()
mm/migrate: fix do_pages_move for compat pointers
riscv: fix set_huge_pte_at() for NAPOT mappings when a swap entry is set
riscv: handle VM_FAULT_[HWPOISON|HWPOISON_LARGE] faults instead of panicking
mmap: fix error paths with dup_anon_vma()
mmap: fix vma_iterator in error path of vma_merge()
mm: fix vm_brk_flags() to not bail out while holding lock
mm/mempolicy: fix set_mempolicy_home_node() previous VMA pointer
mm/page_alloc: correct start page when guard page debug is enabled
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fpga_region_class_find() in fpga_region_test_class_find() will call
get_device() if the data is matched, which will increment refcount for
dev->kobj, so it should call put_device() to decrement refcount for
dev->kobj to free the region, because fpga_region_unregister() will call
fpga_region_dev_release() only when the refcount for dev->kobj is zero
but fpga_region_test_init() call device_register() in
fpga_region_register_full(), which also increment refcount.
So call put_device() after calling fpga_region_class_find() in
fpga_region_test_class_find(). After applying this patch, the following
memory leak is never detected.
unreferenced object 0xffff88810c8ef000 (size 1024):
comm "kunit_try_catch", pid 1875, jiffies 4294715298 (age 836.836s)
hex dump (first 32 bytes):
b8 d1 fb 05 81 88 ff ff 08 f0 8e 0c 81 88 ff ff ................
08 f0 8e 0c 81 88 ff ff 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff817ebad7>] kmalloc_trace+0x27/0xa0
[<ffffffffa02385e1>] fpga_region_register_full+0x51/0x430 [fpga_region]
[<ffffffffa0228e47>] 0xffffffffa0228e47
[<ffffffff829c479d>] kunit_try_run_case+0xdd/0x250
[<ffffffff829c9f2a>] kunit_generic_run_threadfn_adapter+0x4a/0x90
[<ffffffff81238b85>] kthread+0x2b5/0x380
[<ffffffff81097ded>] ret_from_fork+0x2d/0x70
[<ffffffff810034d1>] ret_from_fork_asm+0x11/0x20
unreferenced object 0xffff888105fbd1b8 (size 8):
comm "kunit_try_catch", pid 1875, jiffies 4294715298 (age 836.836s)
hex dump (first 8 bytes):
72 65 67 69 6f 6e 30 00 region0.
backtrace:
[<ffffffff817ec023>] __kmalloc_node_track_caller+0x53/0x150
[<ffffffff82995590>] kvasprintf+0xb0/0x130
[<ffffffff83f713b1>] kobject_set_name_vargs+0x41/0x110
[<ffffffff8304ac1b>] dev_set_name+0xab/0xe0
[<ffffffffa02388a2>] fpga_region_register_full+0x312/0x430 [fpga_region]
[<ffffffffa0228e47>] 0xffffffffa0228e47
[<ffffffff829c479d>] kunit_try_run_case+0xdd/0x250
[<ffffffff829c9f2a>] kunit_generic_run_threadfn_adapter+0x4a/0x90
[<ffffffff81238b85>] kthread+0x2b5/0x380
[<ffffffff81097ded>] ret_from_fork+0x2d/0x70
[<ffffffff810034d1>] ret_from_fork_asm+0x11/0x20
unreferenced object 0xffff88810b3b8a00 (size 256):
comm "kunit_try_catch", pid 1875, jiffies 4294715298 (age 836.836s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 08 8a 3b 0b 81 88 ff ff ..........;.....
08 8a 3b 0b 81 88 ff ff e0 ac 04 83 ff ff ff ff ..;.............
backtrace:
[<ffffffff817ebad7>] kmalloc_trace+0x27/0xa0
[<ffffffff83056d7a>] device_add+0xa2a/0x15e0
[<ffffffffa02388b1>] fpga_region_register_full+0x321/0x430 [fpga_region]
[<ffffffffa0228e47>] 0xffffffffa0228e47
[<ffffffff829c479d>] kunit_try_run_case+0xdd/0x250
[<ffffffff829c9f2a>] kunit_generic_run_threadfn_adapter+0x4a/0x90
[<ffffffff81238b85>] kthread+0x2b5/0x380
[<ffffffff81097ded>] ret_from_fork+0x2d/0x70
[<ffffffff810034d1>] ret_from_fork_asm+0x11/0x20
Fixes: 64a5f972c93d ("fpga: add an initial KUnit suite for the FPGA Region")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Marco Pagani <marpagan@redhat.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20231007094321.3447084-1-ruanjinjie@huawei.com
[yilun.xu@intel.com: slightly changes the commit message]
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Link: https://lore.kernel.org/r/20231023032857.902699-3-yilun.xu@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Change the maintainer for the Intel MAX10 BMC Secure Update driver from
Russ Weight to Peter Colberg. Update the ABI documentation contact
information as well.
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Acked-by: Peter Colberg <peter.colberg@intel.com>
Link: https://lore.kernel.org/r/20230928164753.278684-1-russell.h.weight@intel.com
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Link: https://lore.kernel.org/r/20231023032857.902699-2-yilun.xu@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When supporting OA for TGL, it was seen that the context valid bit in
the report ID was not defined, however revisiting the spec seems to have
this bit defined. The bit is used to determine if a context is valid on
a context switch and is essential to determine active and idle periods
for a context. Re-enable the context valid bit for gen12 platforms.
BSpec: 52196 (description of report_id)
v2: Include BSpec reference (Ashutosh)
Fixes: 00a7f0d7155c ("drm/i915/tgl: Add perf support on TGL")
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230802202854.1224547-1-umesh.nerlige.ramappa@intel.com
(cherry picked from commit 7eeaedf79989a8f131939782832e21e9218ed2a0)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Smatch is awesome.
Fixes: 32671e3799ca ("perf: Disallow mis-matched inherited group reads")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Pablo Neira Ayuso says:
====================
GTP tunnel driver fixes
The following patchset contains two fixes for the GTP tunnel driver:
1) Incorrect GTPA_MAX definition in UAPI headers. This is updating an
existing UAPI definition but for a good reason, this is certainly
broken. Similar fixes for incorrect _MAX definition in netlink
headers were applied in the past too.
2) Fix GTP driver PMTU with GRO packets, add missing call to
skb_gso_validate_network_len() to handle GRO packets.
====================
Link: https://lore.kernel.org/r/20231022202519.659526-1-pablo@netfilter.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Call skb_gso_validate_network_len() to check if packet is over PMTU.
Fixes: 459aa660eb1d ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Subtract one to __GTPA_MAX, otherwise GTPA_MAX is off by 2.
Fixes: 459aa660eb1d ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We are seeing systemd hang on its autofs direct mount at
/proc/sys/fs/binfmt_misc.
Historically this was due to a mismatch in the communication structure
size between a 64 bit kernel and a 32 bit user space and was fixed by
making the pipe communication record oriented.
During autofs v5 development I decided to stay with the existing usage
instead of changing to a packed structure for autofs <=> user space
communications which turned out to be a mistake on my part.
Problems arose and they were fixed by allowing for the 64 bit to 32
bit size difference in the automount(8) code.
Along the way systemd started to use autofs and eventually encountered
this problem too. systemd refused to compensate for the length
difference insisting it be fixed in the kernel. Fortunately Linus
implemented the packetized pipe which resolved the problem in a
straight forward and simple way.
In the autofs mount api conversion series I inadvertatly dropped the
packet pipe flag settings when adding the autofs_parse_fd() function.
This patch fixes that omission.
Fixes: 546694b8f658 ("autofs: add autofs_parse_fd()")
Signed-off-by: Ian Kent <raven@themaw.net>
Link: https://lore.kernel.org/r/20231023093359.64265-1-raven@themaw.net
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Cc: Bill O'Donnell <bodonnel@redhat.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dan Carpenter <dan.carpenter@linaro.org>
Cc: Anders Roxell <anders.roxell@linaro.org>
Cc: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Reported-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Check that sk_user_data is not NULL, else return from cn_filter().
Could not reproduce this issue, but Oliver Sang verified it has fixed
the "Closes" problem below.
Fixes: 2aa1f7a1f47c ("connector/cn_proc: Add filtering to fix some bugs")
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202309201456.84c19e27-oliver.sang@intel.com/
Signed-off-by: Anjali Kulkarni <anjali.k.kulkarni@oracle.com>
Link: https://lore.kernel.org/r/20231020234058.2232347-1-anjali.k.kulkarni@oracle.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The calling code actually handles -ECHILD, so this BUG_ON
can be converted to WARN_ON_ONCE.
Signed-off-by: Bernd Schubert <bschubert@ddn.com>
Link: https://lore.kernel.org/r/20231023184718.11143-1-bschubert@ddn.com
Cc: Christian Brauner <brauner@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Dharmendra Singh <dsingh@ddn.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull nfsd fix from Al Viro:
"Catch from lock_rename() audit; nfsd_rename() checked that both
directories belonged to the same filesystem, but only after having
done lock_rename().
Trivial fix, tested and acked by nfs folks"
* tag 'pull-nfsd-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
nfsd: lock_rename() needs both directories to live on the same fs
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git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull nolibc fixes from Paul McKenney:
- tools/nolibc: i386: Fix a stack misalign bug on _start
- MAINTAINERS: nolibc: update tree location
- tools/nolibc: mark start_c as weak to avoid linker errors
* tag 'urgent/nolibc.2023.10.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
tools/nolibc: mark start_c as weak
MAINTAINERS: nolibc: update tree location
tools/nolibc: i386: Fix a stack misalign bug on _start
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Reduce the length of netlink error messages as they are likely to be
truncated anyway. Additionally, reword netlink error messages so they
are more consistent with previous messages.
Fixes: 9dbc8d2b9a02 ("sfc: add decrement ipv6 hop limit by offloading set hop limit actions")
Fixes: 3c9561c0a5b9 ("sfc: support TC decap rules matching on enc_ip_tos")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202310202136.4u7bv0hp-lkp@intel.com/
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://lore.kernel.org/r/20231020140149.30490-1-pieter.jansen-van-vuuren@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into arm/fixes
mvebu fixes for 6.6 (part 1)
Update MAINTAINERS for eDPU board
* tag 'mvebu-fixes-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu:
MAINTAINERS: uDPU: add remaining Methode boards
MAINTAINERS: uDPU: make myself maintainer of it
Link: https://lore.kernel.org/r/875y32abqe.fsf@BL-laptop
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fix from David Sterba:
"One more fix for a problem with snapshot of a newly created subvolume
that can lead to inconsistent data under some circumstances. Kernel
6.5 added a performance optimization to skip transaction commit for
subvolume creation but this could end up with newer data on disk but
not linked to other structures.
The fix itself is an added condition, the rest of the patch is a
parameter added to several functions"
* tag 'for-6.6-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix unwritten extent buffer after snapshotting a new subvolume
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Pull virtio fixes from Michael Tsirkin:
"A collection of small fixes that look like worth having in this
release"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio_pci: fix the common cfg map size
virtio-crypto: handle config changed by work queue
vhost: Allow null msg.size on VHOST_IOTLB_INVALIDATE
vdpa/mlx5: Fix firmware error on creation of 1k VQs
virtio_balloon: Fix endless deflation and inflation on arm64
vdpa/mlx5: Fix double release of debugfs entry
virtio-mmio: fix memory leak of vm_dev
vdpa_sim_blk: Fix the potential leak of mgmt_dev
tools/virtio: Add dma sync api for virtio test
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Add a EDAC driver for the RAS capabilities on the Xilinx integrated DDR
Memory Controllers (DDRMCs) which support both DDR4 and LPDDR4/4X memory
interfaces. It has four programmable Network-on-Chip (NoC) interface
ports and is designed to handle multiple streams of traffic. The driver
reports correctable and uncorrectable errors, and also creates debugfs
entries for testing through error injection.
[ bp:
- Add a pointer to the documentation about the register unlock code.
- Squash in a fix for a Smatch static checker issue as reported by
Dan Carpenter:
https://lore.kernel.org/r/a4db6f93-8e5f-4d55-a7b8-b5a987d48a58@moroto.mountain
]
Co-developed-by: Sai Krishna Potthuri <sai.krishna.potthuri@amd.com>
Signed-off-by: Sai Krishna Potthuri <sai.krishna.potthuri@amd.com>
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20231005101242.14621-3-shubhrajyoti.datta@amd.com
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If req->hr_proto->hp_accept() fail, we call fput() twice:
Once in the error path, but also a second time because sock->file
is at that point already associated with the file descriptor. Once
the task exits, as it would probably do after receiving an error
reading from netlink, the fd is closed, calling fput() a second time.
To fix, we move installing the file after the error path for the
hp_accept() call. In the case of errors we simply put the unused fd.
In case of success we can use fd_install() to link the sock->file
to the reserved fd.
Fixes: 7ea9c1ec66bc ("net/handshake: Fix handshake_dup() ref counting")
Signed-off-by: Moritz Wanzenböck <moritz.wanzenboeck@linbit.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/20231019125847.276443-1-moritz.wanzenboeck@linbit.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When creating a snapshot of a subvolume that was created in the current
transaction, we can end up not persisting a dirty extent buffer that is
referenced by the snapshot, resulting in IO errors due to checksum failures
when trying to read the extent buffer later from disk. A sequence of steps
that leads to this is the following:
1) At ioctl.c:create_subvol() we allocate an extent buffer, with logical
address 36007936, for the leaf/root of a new subvolume that has an ID
of 291. We mark the extent buffer as dirty, and at this point the
subvolume tree has a single node/leaf which is also its root (level 0);
2) We no longer commit the transaction used to create the subvolume at
create_subvol(). We used to, but that was recently removed in
commit 1b53e51a4a8f ("btrfs: don't commit transaction for every subvol
create");
3) The transaction used to create the subvolume has an ID of 33, so the
extent buffer 36007936 has a generation of 33;
4) Several updates happen to subvolume 291 during transaction 33, several
files created and its tree height changes from 0 to 1, so we end up with
a new root at level 1 and the extent buffer 36007936 is now a leaf of
that new root node, which is extent buffer 36048896.
The commit root remains as 36007936, since we are still at transaction
33;
5) Creation of a snapshot of subvolume 291, with an ID of 292, starts at
ioctl.c:create_snapshot(). This triggers a commit of transaction 33 and
we end up at transaction.c:create_pending_snapshot(), in the critical
section of a transaction commit.
There we COW the root of subvolume 291, which is extent buffer 36048896.
The COW operation returns extent buffer 36048896, since there's no need
to COW because the extent buffer was created in this transaction and it
was not written yet.
The we call btrfs_copy_root() against the root node 36048896. During
this operation we allocate a new extent buffer to turn into the root
node of the snapshot, copy the contents of the root node 36048896 into
this snapshot root extent buffer, set the owner to 292 (the ID of the
snapshot), etc, and then we call btrfs_inc_ref(). This will create a
delayed reference for each leaf pointed by the root node with a
reference root of 292 - this includes a reference for the leaf
36007936.
After that we set the bit BTRFS_ROOT_FORCE_COW in the root's state.
Then we call btrfs_insert_dir_item(), to create the directory entry in
in the tree of subvolume 291 that points to the snapshot. This ends up
needing to modify leaf 36007936 to insert the respective directory
items. Because the bit BTRFS_ROOT_FORCE_COW is set for the root's state,
we need to COW the leaf. We end up at btrfs_force_cow_block() and then
at update_ref_for_cow().
At update_ref_for_cow() we call btrfs_block_can_be_shared() which
returns false, despite the fact the leaf 36007936 is shared - the
subvolume's root and the snapshot's root point to that leaf. The
reason that it incorrectly returns false is because the commit root
of the subvolume is extent buffer 36007936 - it was the initial root
of the subvolume when we created it. So btrfs_block_can_be_shared()
which has the following logic:
int btrfs_block_can_be_shared(struct btrfs_root *root,
struct extent_buffer *buf)
{
if (test_bit(BTRFS_ROOT_SHAREABLE, &root->state) &&
buf != root->node && buf != root->commit_root &&
(btrfs_header_generation(buf) <=
btrfs_root_last_snapshot(&root->root_item) ||
btrfs_header_flag(buf, BTRFS_HEADER_FLAG_RELOC)))
return 1;
return 0;
}
Returns false (0) since 'buf' (extent buffer 36007936) matches the
root's commit root.
As a result, at update_ref_for_cow(), we don't check for the number
of references for extent buffer 36007936, we just assume it's not
shared and therefore that it has only 1 reference, so we set the local
variable 'refs' to 1.
Later on, in the final if-else statement at update_ref_for_cow():
static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct extent_buffer *buf,
struct extent_buffer *cow,
int *last_ref)
{
(...)
if (refs > 1) {
(...)
} else {
(...)
btrfs_clear_buffer_dirty(trans, buf);
*last_ref = 1;
}
}
So we mark the extent buffer 36007936 as not dirty, and as a result
we don't write it to disk later in the transaction commit, despite the
fact that the snapshot's root points to it.
Attempting to access the leaf or dumping the tree for example shows
that the extent buffer was not written:
$ btrfs inspect-internal dump-tree -t 292 /dev/sdb
btrfs-progs v6.2.2
file tree key (292 ROOT_ITEM 33)
node 36110336 level 1 items 2 free space 119 generation 33 owner 292
node 36110336 flags 0x1(WRITTEN) backref revision 1
checksum stored a8103e3e
checksum calced a8103e3e
fs uuid 90c9a46f-ae9f-4626-9aff-0cbf3e2e3a79
chunk uuid e8c9c885-78f4-4d31-85fe-89e5f5fd4a07
key (256 INODE_ITEM 0) block 36007936 gen 33
key (257 EXTENT_DATA 0) block 36052992 gen 33
checksum verify failed on 36007936 wanted 0x00000000 found 0x86005f29
checksum verify failed on 36007936 wanted 0x00000000 found 0x86005f29
total bytes 107374182400
bytes used 38572032
uuid 90c9a46f-ae9f-4626-9aff-0cbf3e2e3a79
The respective on disk region is full of zeroes as the device was
trimmed at mkfs time.
Obviously 'btrfs check' also detects and complains about this:
$ btrfs check /dev/sdb
Opening filesystem to check...
Checking filesystem on /dev/sdb
UUID: 90c9a46f-ae9f-4626-9aff-0cbf3e2e3a79
generation: 33 (33)
[1/7] checking root items
[2/7] checking extents
checksum verify failed on 36007936 wanted 0x00000000 found 0x86005f29
checksum verify failed on 36007936 wanted 0x00000000 found 0x86005f29
checksum verify failed on 36007936 wanted 0x00000000 found 0x86005f29
bad tree block 36007936, bytenr mismatch, want=36007936, have=0
owner ref check failed [36007936 4096]
ERROR: errors found in extent allocation tree or chunk allocation
[3/7] checking free space tree
[4/7] checking fs roots
checksum verify failed on 36007936 wanted 0x00000000 found 0x86005f29
checksum verify failed on 36007936 wanted 0x00000000 found 0x86005f29
checksum verify failed on 36007936 wanted 0x00000000 found 0x86005f29
bad tree block 36007936, bytenr mismatch, want=36007936, have=0
The following tree block(s) is corrupted in tree 292:
tree block bytenr: 36110336, level: 1, node key: (256, 1, 0)
root 292 root dir 256 not found
ERROR: errors found in fs roots
found 38572032 bytes used, error(s) found
total csum bytes: 16048
total tree bytes: 1265664
total fs tree bytes: 1118208
total extent tree bytes: 65536
btree space waste bytes: 562598
file data blocks allocated: 65978368
referenced 36569088
Fix this by updating btrfs_block_can_be_shared() to consider that an
extent buffer may be shared if it matches the commit root and if its
generation matches the current transaction's generation.
This can be reproduced with the following script:
$ cat test.sh
#!/bin/bash
MNT=/mnt/sdi
DEV=/dev/sdi
# Use a filesystem with a 64K node size so that we have the same node
# size on every machine regardless of its page size (on x86_64 default
# node size is 16K due to the 4K page size, while on PPC it's 64K by
# default). This way we can make sure we are able to create a btree for
# the subvolume with a height of 2.
mkfs.btrfs -f -n 64K $DEV
mount $DEV $MNT
btrfs subvolume create $MNT/subvol
# Create a few empty files on the subvolume, this bumps its btree
# height to 2 (root node at level 1 and 2 leaves).
for ((i = 1; i <= 300; i++)); do
echo -n > $MNT/subvol/file_$i
done
btrfs subvolume snapshot -r $MNT/subvol $MNT/subvol/snap
umount $DEV
btrfs check $DEV
Running it on a 6.5 kernel (or any 6.6-rc kernel at the moment):
$ ./test.sh
Create subvolume '/mnt/sdi/subvol'
Create a readonly snapshot of '/mnt/sdi/subvol' in '/mnt/sdi/subvol/snap'
Opening filesystem to check...
Checking filesystem on /dev/sdi
UUID: bbdde2ff-7d02-45ca-8a73-3c36f23755a1
[1/7] checking root items
[2/7] checking extents
parent transid verify failed on 30539776 wanted 7 found 5
parent transid verify failed on 30539776 wanted 7 found 5
parent transid verify failed on 30539776 wanted 7 found 5
Ignoring transid failure
owner ref check failed [30539776 65536]
ERROR: errors found in extent allocation tree or chunk allocation
[3/7] checking free space tree
[4/7] checking fs roots
parent transid verify failed on 30539776 wanted 7 found 5
Ignoring transid failure
Wrong key of child node/leaf, wanted: (256, 1, 0), have: (2, 132, 0)
Wrong generation of child node/leaf, wanted: 5, have: 7
root 257 root dir 256 not found
ERROR: errors found in fs roots
found 917504 bytes used, error(s) found
total csum bytes: 0
total tree bytes: 851968
total fs tree bytes: 393216
total extent tree bytes: 65536
btree space waste bytes: 736550
file data blocks allocated: 0
referenced 0
A test case for fstests will follow soon.
Fixes: 1b53e51a4a8f ("btrfs: don't commit transaction for every subvol create")
CC: stable@vger.kernel.org # 6.5+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
|
|
Looks like the KFD still needs this.
Signed-off-by: Christian König <christian.koenig@amd.com>
Fixes: 8abc1eb2987a ("drm/amdkfd: switch over to using drm_exec v3")
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231020123306.43978-1-christian.koenig@amd.com
|
|
Erhard reported that his G5 was crashing with v6.6-rc kernels:
mpic: Setting up HT PICs workarounds for U3/U4
BUG: Unable to handle kernel data access at 0xfeffbb62ffec65fe
Faulting instruction address: 0xc00000000005dc40
Oops: Kernel access of bad area, sig: 11 [#1]
BE PAGE_SIZE=4K MMU=Hash SMP NR_CPUS=2 PowerMac
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G T 6.6.0-rc3-PMacGS #1
Hardware name: PowerMac11,2 PPC970MP 0x440101 PowerMac
NIP: c00000000005dc40 LR: c000000000066660 CTR: c000000000007730
REGS: c0000000022bf510 TRAP: 0380 Tainted: G T (6.6.0-rc3-PMacGS)
MSR: 9000000000001032 <SF,HV,ME,IR,DR,RI> CR: 44004242 XER: 00000000
IRQMASK: 3
GPR00: 0000000000000000 c0000000022bf7b0 c0000000010c0b00 00000000000001ac
GPR04: 0000000003c80000 0000000000000300 c0000000f20001ae 0000000000000300
GPR08: 0000000000000006 feffbb62ffec65ff 0000000000000001 0000000000000000
GPR12: 9000000000001032 c000000002362000 c000000000f76b80 000000000349ecd8
GPR16: 0000000002367ba8 0000000002367f08 0000000000000006 0000000000000000
GPR20: 00000000000001ac c000000000f6f920 c0000000022cd985 000000000000000c
GPR24: 0000000000000300 00000003b0a3691d c0003e008030000e 0000000000000000
GPR28: c00000000000000c c0000000f20001ee feffbb62ffec65fe 00000000000001ac
NIP hash_page_do_lazy_icache+0x50/0x100
LR __hash_page_4K+0x420/0x590
Call Trace:
hash_page_mm+0x364/0x6f0
do_hash_fault+0x114/0x2b0
data_access_common_virt+0x198/0x1f0
--- interrupt: 300 at mpic_init+0x4bc/0x10c4
NIP: c000000002020a5c LR: c000000002020a04 CTR: 0000000000000000
REGS: c0000000022bf9f0 TRAP: 0300 Tainted: G T (6.6.0-rc3-PMacGS)
MSR: 9000000000001032 <SF,HV,ME,IR,DR,RI> CR: 24004248 XER: 00000000
DAR: c0003e008030000e DSISR: 40000000 IRQMASK: 1
...
NIP mpic_init+0x4bc/0x10c4
LR mpic_init+0x464/0x10c4
--- interrupt: 300
pmac_setup_one_mpic+0x258/0x2dc
pmac_pic_init+0x28c/0x3d8
init_IRQ+0x90/0x140
start_kernel+0x57c/0x78c
start_here_common+0x1c/0x20
A bisect pointed to the breakage beginning with commit 9fee28baa601 ("powerpc:
implement the new page table range API").
Analysis of the oops pointed to a struct page with a corrupted
compound_head being loaded via page_folio() -> _compound_head() in
hash_page_do_lazy_icache().
The access by the mpic code is to an MMIO address, so the expectation
is that the struct page for that address would be initialised by
init_unavailable_range(), as pointed out by Aneesh.
Instrumentation showed that was not the case, which eventually lead to
the realisation that pfn_valid() was returning false for that address,
causing the struct page to not be initialised.
Because the system is using FLATMEM, the version of pfn_valid() in
memory_model.h is used:
static inline int pfn_valid(unsigned long pfn)
{
...
return pfn >= pfn_offset && (pfn - pfn_offset) < max_mapnr;
}
Which relies on max_mapnr being initialised. Early in boot max_mapnr is
zero meaning no PFNs are valid.
max_mapnr is initialised in mem_init() called via:
start_kernel()
mm_core_init() # init/main.c:928
mem_init()
But that is too late for the usage in init_unavailable_range() called via:
start_kernel()
setup_arch() # init/main.c:893
paging_init()
free_area_init()
init_unavailable_range()
Although max_mapnr is currently set in mem_init(), the value is actually
already available much earlier, as soon as mem_topology_setup() has
completed, which is also before paging_init() is called. So move the
initialisation there, which causes paging_init() to correctly initialise
the struct page and fixes the bug.
This bug seems to have been lurking for years, but went unnoticed
because the pre-folio code was inspecting the uninitialised page->flags
but not dereferencing it.
Thanks to Erhard and Aneesh for help debugging.
Reported-by: Erhard Furtner <erhard_f@mailbox.org>
Closes: https://lore.kernel.org/all/20230929132750.3cd98452@yea/
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231023112500.1550208-1-mpe@ellerman.id.au
|
|
Not all public action frames have a protected variant. When MFP is
enabled drop only public action frames that have a dual protected
variant.
Fixes: 76a3059cf124 ("wifi: mac80211: drop some unprotected action frames")
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20231016145213.2973e3c8d3bb.I6198b8d3b04cf4a97b06660d346caec3032f232a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
|
|
The warning here shouldn't be done before we even set the
bss field (or should've used the input data). Move the
assignment before the warning to fix it.
We noticed this now because of Wen's bugfix, where the bug
fixed there had previously hidden this other bug.
Fixes: 53ad07e9823b ("wifi: cfg80211: support reporting failed links")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
|
|
Confusing struct member names here resulted in passing
the wrong pointer, causing crashes. Pass the correct one.
Fixes: eb142608e2c4 ("wifi: cfg80211: use a struct for inform_single_bss data")
Signed-off-by: Ben Greear <greearb@candelatech.com>
Link: https://lore.kernel.org/r/20231021154827.1142734-1-greearb@candelatech.com
[rewrite commit message, add fixes]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
|
|
protocoll -> protocol
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
|
|
The memcpy() in bch2_bkey_append_ptr() is operating on an embedded fake
flexible array which looks to the compiler like it has 0 size. This
causes W=1 builds to emit warnings due to -Wstringop-overflow:
In file included from include/linux/string.h:254,
from include/linux/bitmap.h:11,
from include/linux/cpumask.h:12,
from include/linux/smp.h:13,
from include/linux/lockdep.h:14,
from include/linux/radix-tree.h:14,
from include/linux/backing-dev-defs.h:6,
from fs/bcachefs/bcachefs.h:182:
fs/bcachefs/extents.c: In function 'bch2_bkey_append_ptr':
include/linux/fortify-string.h:57:33: warning: writing 8 bytes into a region of size 0 [-Wstringop-overflow=]
57 | #define __underlying_memcpy __builtin_memcpy
| ^
include/linux/fortify-string.h:648:9: note: in expansion of macro '__underlying_memcpy'
648 | __underlying_##op(p, q, __fortify_size); \
| ^~~~~~~~~~~~~
include/linux/fortify-string.h:693:26: note: in expansion of macro '__fortify_memcpy_chk'
693 | #define memcpy(p, q, s) __fortify_memcpy_chk(p, q, s, \
| ^~~~~~~~~~~~~~~~~~~~
fs/bcachefs/extents.c:235:17: note: in expansion of macro 'memcpy'
235 | memcpy((void *) &k->v + bkey_val_bytes(&k->k),
| ^~~~~~
fs/bcachefs/bcachefs_format.h:287:33: note: destination object 'v' of size 0
287 | struct bch_val v;
| ^
Avoid making any structure changes and just replace the u64 copy into a
direct assignment, side-stepping the entire problem.
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Brian Foster <bfoster@redhat.com>
Cc: linux-bcachefs@vger.kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202309192314.VBsjiIm5-lkp@intel.com/
Link: https://lore.kernel.org/r/20231010235609.work.594-kees@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
For consistency with the rest of the reconstruct_alloc option, we should
be skipping all alloc keys.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Add a new lock for snapshot creation - this addresses a few races with
logged operations and snapshot deletion.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
In snapshot deleion, we have to pick new skiplist nodes for entries that
point to nodes being deleted.
The function that finds a new skiplist node, skipping over entries being
deleted, was incorrect: if n = 0, but the parent node is being deleted,
we also need to skip over that node.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Instead of using token pasting to generate methods for each superblock
section, just make the type a parameter to bch2_sb_field_get().
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
KEY_TYPE_error is used when all replicas in an extent are marked as
failed; it indicates that data was present, but has been lost.
So that i_sectors doesn't change when replacing extents with
KEY_TYPE_error, we now have to count error keys as allocations - this
fixes fsck errors later.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
min_val_size was U8_MAX for unknown key types, causing us to flag any
known key as invalid - it should have been 0.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
The new fortify checking doesn't work for us in all places; this
switches to unsafe_memcpy() where appropriate to silence a few
warnings/errors.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Use struct_size() instead of hand writing it.
This is less verbose and more robust.
While at it, prepare for the coming implementation by GCC and Clang of the
__counted_by attribute. Flexible array members annotated with __counted_by
can have their accesses bounds-checked at run-time checking via
CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for
strcpy/memcpy-family functions).
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
bch2_dev_resize() was never updated for the allocator rewrite with
persistent freelists, and it wasn't noticed because the tests weren't
running fsck - oops.
Fix this by running bch2_dev_freespace_init() for the new buckets.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
This should be harmless, but initialize last_seq anyways.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Minor refactoring to fix a smatch complaint.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Hunter Shaffer <huntershaffer182456@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Hunter Shaffer <huntershaffer182456@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
members_v2 has dynamically resizable entries so that we can extend
bch_member. The members can no longer be accessed with simple array
indexing Instead members_v2_get is used to find a member's exact
location within the array and returns a copy of that member.
Alternatively member_v2_get_mut retrieves a mutable point to a member.
Signed-off-by: Hunter Shaffer <huntershaffer182456@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Prep work for introducing bch_sb_field_members_v2 - introduce new
helpers that will check for members_v2 if it exists, otherwise using v1
Signed-off-by: Hunter Shaffer <huntershaffer182456@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
